@echo off
FOR /f "tokens=1-3 delims=: skip=2 eol=#" %%i in (JM_config) DO (
echo %%i
echo %~dp0
start start_Slave.bat %%i
)


rem IN 的括号里面以逗号分隔   %~dp0   a2.bat 必须在当前执行脚本的同级目录下